Results 181 to 190 of about 531,630 (365)

Armoring Boron Nitride with Pyrolytic Carbon Layers for Tunable Rigidity and Flexibility

open access: yesAdvanced Science, EarlyView.
By precisely controlling the thickness of the PyC armor, the BN@PyC aerogel achieves a remarkable transformation in mechanical properties, spanning multiple orders of magnitude from flexibility to rigidity, while simultaneously exhibiting versatility, including elastic responsive conductivity, enhanced thermal conductivity, and outstanding ablative ...
Meng Lan   +5 more
wiley   +1 more source

Bio‐Inspired Structural Color Irises as Physical Unclonable Functions for Anti‐Counterfeiting

open access: yesAdvanced Science, EarlyView.
This work employs colloidal photonic crystals to create macro‐to‐micro scale PUF anti‐counterfeiting patterns. Integrated with iris recognition algorithms, it establishes a multi‐layered optical anti‐counterfeiting system based on structural color irises.
Kongyu Ge   +13 more
wiley   +1 more source

Superelastic Fire‐Safe Aerogel with Hierarchical Structures via Dual Templates Aided by Microbubble Engineering

open access: yesAdvanced Science, EarlyView.
Here, a dual‐template strategy (ice and bubble template) is used to prepare fire‐safe aerogels with hierarchical structures. When the foam expansion ratio exceeds the jamming transition value in the foam system, the aerogels demonstrate superelasticity and extreme shape adaptability.
Xiaoyang Yu   +5 more
wiley   +1 more source

In Situ Formation of Mechanically Interlocked Heterointerfaces with Ultrahigh Bonding Strength for Mg‐Based Multilayered Sheets

open access: yesAdvanced Science, EarlyView.
Crystal‐orientation controlled hot‐rolling strategy creates Mg‐Ta immiscible composites featuring mechanically interlocked in situ formed interfaces (80.5 MPa bond strength) and excellent tensile properties (340–395 MPa UTS). Systematic multiscale investigations reveal a serration‐size‐dependent bonding mechanism and a three‐stage interfacial evolution
Zhilei Yu   +8 more
wiley   +1 more source

Interface Topology and Wetting Dynamics of Laser‐Induced Bonds Between Aluminum Foil and Silicon Nitride Passivation in Solar Cells

open access: yesAdvanced Energy Materials, EarlyView.
Metallization in photovoltaics faces challenges due to silver dependency. This study explores Laser Metal Bonding (LMB), an ultra‐rapid, ablation‐free process enabling robust aluminum‐to‐silicon nitride connections while preserving passivation layers and cell efficiency. Combining experiments and simulations, key adhesion mechanisms, thermal thresholds,
Oliver John   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy